Home / Past Events / Patapsco 9 Mile Trail Run Patapsco 9 Mile Trail Run November 20th: 12PM-3PM: Nine Mile Trail Run at Patapsco Valley Park. RSVP Category: Past Events Description Reviews (0) Planned Route Patapsco Valley Park is one of the larger regional parks for trail running. Our trail takes us through some of the best sections of the park. After you register on Zen Planner, you’ll be emailed an electronic trail and updated information on parking. If you are looking for Cliff Blocks or Running Gu — we now have them for sale at the gym. Reviews There are no reviews yet. Be the first to review “Patapsco 9 Mile Trail Run” Cancel replyYou must be logged in to post a review.